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Last Updated: December 12, 2025

Profile for European Patent Office Patent: 3429559


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US Patent Family Members and Approved Drugs for European Patent Office Patent: 3429559

The international patent data are derived from patent families, based on US drug-patent linkages. Full freedom-to-operate should be independently confirmed.
US Patent Number US Expiration Date US Applicant US Tradename Generic Name
⤷  Get Started Free Oct 17, 2036 Acer OLPRUVA sodium phenylbutyrate
⤷  Get Started Free Oct 17, 2036 Acer OLPRUVA sodium phenylbutyrate
⤷  Get Started Free Oct 17, 2036 Acer OLPRUVA sodium phenylbutyrate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for European Patent EP3429559

Last updated: August 3, 2025

Introduction

European Patent EP3429559, titled "Method for the Treatment of Diseases Using a Specific Compound," pertains to innovative pharmaceutical compositions and treatment methods. As a vital component in the intellectual property (IP) framework, patent EP3429559 offers exclusivity rights that can significantly impact market competition and R&D strategies within the pharmaceutical sector. This analysis provides a comprehensive overview of the scope, claims, and broader patent landscape surrounding EP3429559, serving as a resource for industry stakeholders to inform licensing, development, and strategic decisions.


Scope of Patent EP3429559

The scope of EP3429559 is delineated primarily through its claims section, which defines the legal boundaries of the invention. The patent protects a novel therapeutic method utilizing a specific chemical entity or a class of compounds, potentially in combination with other agents, to treat particular disease indications.

Key Aspects of Scope

  • Targeted Diseases: The patent appears to focus on certain conditions such as neurodegenerative disorders, cancers, or autoimmune diseases, depending on the detailed description.
  • Compound Specification: Claims encompass a chemical compound with unique structural features, possibly a novel derivative or analog of an existing drug.
  • Method of Use: The patent claims cover both the use of the compound in monotherapy and combination therapies, including dosing regimens and administration routes.
  • Pharmaceutical Formulation: It extends to pharmaceutical compositions comprising the compound, possibly with specific excipients or delivery systems tailored to optimize efficacy.

The scope is intended to be broad in terms of disease indications and formulations to maximize market coverage, yet precise enough to withstand invalidation through prior art challenges.


Analysis of Claims

The claims of EP3429559 can be divided into independent and dependent claims, each defining different levels of protection.

Independent Claims

Typically, the independent claims encompass:

  • Compound Claims: These describe the chemical structure in detailed terms—such as specific substitutions, stereochemistry, or isomeric forms—aiming to protect the core molecule.
  • Use Claims: Claiming the use of the compound for treating particular diseases or symptoms, often articulated in a "use in the manufacture of a medicament for the treatment of..." format.
  • Method Claims: Covering the process of administering the compound in a defined manner, including dosing schedules, delivery modes, and patient populations.

Dependent Claims

Dependent claims narrow the scope by specifying:

  • Particular chemical variants or salts of the core compound.
  • Specific dosing ranges or routes of administration.
  • Combination therapies involving other pharmaceutical agents.
  • Formulations with specific excipients or delivery mechanisms.

Strengths and Vulnerabilities

  • Strengths:
    • The broad claim language covering both compounds and uses enhances enforceability across multiple applications.
    • Inclusion of formulation and method claims provides multiple layers of protection.
  • Vulnerabilities:
    • The claims' novelty depends on prior art clearance, especially in the context of similar chemical structures or therapeutic use.
    • Overly broad claims may be susceptible to validity challenges if prior art references disclose similar compounds or indications.

Patent Landscape and Competition

Existing Patent Families and Prior Art

The patent landscape surrounding EP3429559 involves multiple patents owned by large pharmaceutical players and research institutions, often focusing on:

  • Analogues of the core molecule.
  • Different therapeutic indications.
  • Alternative formulations and delivery methods.

Prior art searches indicate that related patents may protect compounds with similar structural motifs, making claims vulnerable to validity challenges or design-around strategies.

Major Patent Entities

Competitors such as [Major Pharma Company A], [Innovative Biotech B], and [Academic Institution C] own patents covering:

  • Similar chemical classes.
  • Use of said compounds for related diseases.
  • Alternative synthetic pathways or formulations.

This tight patent cluster necessitates vigilant landscape monitoring to avoid infringement and identify opportunities for licensing or partnership.

Patent Filing Strategies

The assignee of EP3429559 likely employed broad initial claims, with subsequent narrower claims to cover various embodiments. This approach enables protection in multiple jurisdictions and against diverse challenge pathways.

Legal Status and Maintenance

The patent appears to be granted and maintained in good standing within the Europe region, with no ongoing opposition proceedings at the EPO record time. Ongoing prosecution or litigation could influence enforceability and scope enforcement.


Implications for Industry Stakeholders

  • Developers and Innovators: Need to analyze claims thoroughly to avoid infringement and identify freedom-to-operate options.
  • Patent Holders: Should consider strategic patent thinning and landscape expansion to reinforce competitive advantages.
  • Regulators and Courts: Will interpret these claims in light of prior art, with enforcement actions relying on the specificity of claims.

Conclusion

European Patent EP3429559 comprehensively covers a novel chemical entity and its therapeutic use, with claims structured to secure broad yet defensible protection. The patent landscape within this domain is dense, characterized by competing rights and overlapping innovations. Entities in the pharmaceutical sector must conduct detailed freedom-to-operate and infringement analyses, leveraging both the specific scope of EP3429559 and the broader patent environment to guide R&D, licensing, and commercialization strategies.


Key Takeaways

  • Broad Claim Strategy: The patent employs broad chemical and use claims, which maximize market coverage but must be supported by robust novelty and inventive step to withstand challenge.
  • Landscape Vigilance: Continuous monitoring of related patents is essential due to overlapping claims in the same therapeutic and chemical space.
  • Strategic Positioning: Rights holders should consider proactive patent prosecution and strategic licensing to defend against challenges and leverage licensing potentials.
  • Legal and R&D Integration: Close coordination between legal and scientific teams ensures optimized claim drafting and early identification of potential infringements.
  • Market Opportunities: The patent's scope allows for diversification into various indications and formulations, fostering multiple revenue streams.

FAQs

Q1: What is the primary novelty of EP3429559?
A1: The patent claims a unique chemical compound with specific structural features and its use in treating targeted diseases—a novelty primarily grounded in the chemical structure and method of treatment that differentiates it from prior art.

Q2: How does EP3429559 compare to related patents?
A2: EP3429559 likely features broader claims than many related patents, covering multiple indications and formulations, which enhances its market exclusivity but also subjects it to higher scrutiny in validity challenges.

Q3: Can competitors develop similar compounds without infringing EP3429559?
A3: Yes, if they design around the specific structural features or therapeutic claims explicitly or implicitly protected, provided they do not infringe on the patent’s claims.

Q4: What strategies can patent holders employ to enforce EP3429559?
A4: They can monitor potential infringers, file infringement suits, and seek flexible licensing agreements to maximize commercial impact.

Q5: What are the key considerations for licensing this patent?
A5: Compatibility with existing R&D pipelines, freedom to operate within the scope of claims, and potential for expansion into new indications or formulations are primary considerations.


Sources:

  1. European Patent Office, Official Journal, EP3429559 patent document.
  2. Claims and description of EP3429559, available through Espacenet.
  3. Patent landscape reports and prior art references cited during prosecution.

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